Make a Lie Detector Machine With ElecFreaks Micro:bit Tinker Kit

With this machine, the truth will never escape you! As long as you can make your subject hold a moisture sensor for a while.
This tutorial was contributed by Samuel Ong from Raffles Institution.
In this project, we will create a simple lie detector machine, which works by measuring the electrical conductivity of our skin. Upon feeling nervous, our skin’s electrical conductivity will increase, and the moisture sensor can pick up on that. This allows us to determine if a person is telling the truth or not.”